Distributor for fluid operated apparatus



8- 1942- J. MERCIER 2,293,555

DISTRIBUTOR FOR FLUID OPERATED APPARATUS FiledJuh'e29,1939

.FT 4 PIPE] 51 29 '19 r 1 n 2 Z6 Z5 2 27 e:f."

' 4 2a 31 24 V 20 I 21 4 16 47 [T 4-; 0 L E3! .38 54 PIPE '52 A 53 2 1 ean \Qvmer \N YE NTQQ vided with a hollowspace 2 in in a bearing provided in which act on balls ll,

Patented Aug. 18, 1942 msrmnu'roa FOB FLUID QPERATED APPARATUS Jean Mercier, Neuilly-sur- Seine, France Application June 29,

1939. Serial No.

In Great Britain July 8, 1938 1 v 1 Claim. The present invention relates to distributors for controlling the working of fluid pressure operated systems.

The object of the present invention is to provide a distributor of this-kindwhich is better adapted to meet the requirements of practice than those used for the same purpose up to the present time. 7

According to an essential feature of the invention, the distributor includes a control member constituted by -a cam mounted on an axis and a distributor body also movable about the same axis connected mechanically with -'the movable elements to be operated in such manner that said elements, when actuated, move the body of the distributor with respect to the fixed support on which both said distributor body and said cam are pivotally mounted, in such manner as-to bring back said parts into their initial neutral position.

Other features of the present invention will result from the following detailed description of a specific embodiment thereof.

A preferred embodiment of the present invention will be hereinafter described, with reference to the accompanyingdrawing, given merely by way of example, and in which:

Fig. 1 is a sectional plan view of a distributor device made according to the present invention;

Fig. 2 is a corresponding sectional side-eleva tion.

In the embodiment described the distributor is intended to supphr two apparatus or elements to be operated. It comprises a distributor body I pivotally mounted on a fixed frame A and prowhich is provided a cam 3 movable about the axis of a spindle 4 on which it is keyed. This ing provided in a member 6 fixed to body I. Cam 3 operates a series of push rods I, 9, 9, l9 l2, 13, I4 which, under the action of springs I9, 20, 2|, 22, respectively, normally close conduits opening at IS, IS, I1, l3. The action of said springs is adjusted by means of screws 23, 24, 25, 26, respectively. The distributor comprises a main inlet pipe 21 and a main outlet pipe 28 and two fluid supply pipes 29 and 30 leading to the elements or apparatus to be operated. Pipe 21 communicates with a passage 3|; pipe 28 communicates with a passage 32; pipe 29 communicates with apassage' 33 and pipe 39 with a passage 34. Passage 3| communicates with passage 33 through a bent channel 44 closed atone end by a ball II and at theother' end by one of the balls above menspindle 4 is journalled' body I and in a bear tioned, to wit 35 pushed by a spring sicn of which is ball and this sprin sage 3| communicates with passage a channel 38 closed at at the other end, by a ball 39 pushed by 40 the tension a screw 4], a check valve. passages 33 and 3 this ball as OFFICE 35, the tenregulated by a screw 31, this g forming a check valve. Pas- 34 through one end by ball l2 and, a spring which is adjusted by means of with its spring acting as Passage 32 communicates with t through channels 42 and 43.

The operation of the distributor is as follows: The cam having been displaced in the anti-clockwise direction, balls II their seats, balls I their seats. The the passage 3|; through ball 35 as IS. The fluid fluid entering at 2 it is stopped at l5 into channel 44 and passage 33, lifts from its seat and fills conduit 33 as far conduit 29. At the same time the and I3 are lifted from 2 and I4 remaining pressed on 1 passes into l6, but flows is thus fed under pressure to fluid contained in the element to be operated which is connected to pipe 30 flows into conduit 39,

42 into conduit 3 seat I! and then passes through lifted from its Thus when the 2ball l3 being flows to 28.

cam is turned in the anti-clockwise direction fluid under pressure is'fed to one of ,the apparatus to be controlled and the other apparatus is simultaneously Inversely, when the cam is turned direction the first apparatus has its passages connected with the exhaust.

in the opposite connected to the exhaust and the second receives the fluid under pressure.

Theuse of balls for closing the fluid circulationpassages within the respect to the known devices including slide valves or of a po sliding member, t play or clearance, adjustment.

distributor has, with rt covered or uncovere'dby a he advantage of reducing the which permits a more accurate According to the essential feature of the invention, the element to be operated by the fluid v pressure controlled'by the scribed (this element co distributor above de-' istin g for instance of an aileron of an aeroplane, not shown, controlled 45 by a servo-motor,

through a link 45 with body I such as. a jack is connected For instance,

as shown by the drawing, while conduits 29 and 30 lead to through pipes 50 oted to body I.

both sides of the cylinder of said jack, 5| and 52, respectively, the piston 53 is mechanically connected to a link 45 piv-' The mechanical connection is such that, when undergoing the movement which is to be produced sure through one an element in questi bythe feed of fluid under presof the passages 29 and ",the on- (that is to say piston 53,

2 which is movable therewith) produces a rotation of body I about the axis of spindle 4, of the same amplitude and in the same direction as the movement precedingly imparted to control member 3. Thus member 3 andbody l are restored into their initial neutral relative positions, and the feed through 29 is stopped. v

Of course while the distributor described has been provided to supply two apparatus, without departure from the scope of the invention there could be produced such a distributor for the supply of more than two apparatus, of two series of apparatus for example.

Having now described my'invention, what I claim as new and desire to secure by Letters Patent is:

in a structure including a fixed frame and a fluid pressure operated element movable with respect thereto, the combination of a valve body pivoted to said frame about an axis, having an inlet fed with fiuid'under pressure, and an outaseasss let, and fluid conduits leading to both sides-of said movable element, respectively, for operation thereof, said body being further provided with passages inter-connecting said inlet and outlet on the one hand and said fluid conduits, valve means in said body adapted to connect one of said passages with said inlet and the other with said outlet, alternately, a control member pivoted to said body about the same axis, adapted, when moved from neutral position, to operate said valve means in either direction. and mechanical means interposed between said movable element and said body adapted,upon movement of said element with respect to said frame, resulting from a pivoting of said control member with respect to said frame in one direction, from neutral position, to cause said body'to pivot with respect to said frame inthe same direction, to restore said body and said control member into the initial neutral position with respect to each other.

. 'JEAN MERCIER. 

